Pt Status Control Area - Omron NT21 Reference Manual

Areas for Control/Notification
Reference: The configuration and functions of the PT status control area are different when
Words Allocated for the

PT Status Control Area

Symbol C-series PCs
None IR Area
H HR Area
A AR Area
L LR Area
TC Area,
T
Timer PVs
TU ---
TC Area,
C
Counter PVs
CU ---
W ---
TK ---
D DM Area
*2
EM Area ,
E
current bank
E0_ to
---
EC_
Functions of the PT Status Control Area
Reference: When the PT is set to NT20S or NT30/620 compatible mode, data can be written
the PT is set to NT20S or NT30/620 compatible mode. Refer to Appendix C for
details on the NT20S and NT30/620 compatible modes.
Words can be allocated for the PT status control area (host
ing host (PC) areas.
Allocation CV-series PCs
OK CIO Area
OK ---
OK Auxiliary Area
OK ---
Timer Area,
No
Timer PVs
--- ---
Counter Area,
No
Counter PVs
--- ---
--- ---
--- ---
OK DM Area
EM Area,
OK
current bank
--- ---
*1: LR 00000 to LR 00199 are converted to CIO 01000 to CIO 01199.
*2: The EM Area is supported only by the C200HX/HG/HE(-Z)E PCs.
The Auxiliary Area of the CVM1 and CV-series PCs is allocated to system func-
tions, and cannot be used for purposes other than system use.
The range of each memory area differs according to the PC. Refer to Appendix D
PC Memory Maps on page 435.
Screen Switch Setting
Data is written to the screen switch setting word from both the PT and the host.
The meaning of the data differs according to whether it is written from the PT or
the host. However, if the PT is currently operating, the number of the screen dis-
played is always written to the screen switch setting word.
from the host only. In this case, the screen switch setting notification from the PT
occurs in the first word (word m) of the PT status notify area. Refer to Appendix C
for details on the NT20S and NT30/620 compatible modes.
When Data Is Written from the Host
To switch the screen displayed at the PT by an instruction from the host, write the
screen number, as a 4-digit BCD or hexadecimal value, to the screen switch set-
ting word. Whether the value is expressed in BCD or hexadecimal is determined
Allocation CS/CJ-series PCs
OK CIO Area
--- HR Area
No AR Area
*1
--- LR Area
TC Area,
No
Timer PVs
TC area,
---
Timer Completion Flags
TC Area,
No
Counter PVs
TC Area,
---
Counter Completion Flags
--- WR Area
--- Task Flags
OK DM Area
Not for EM Area,
Host Link current bank
EM Area,
---
EM banks 0 to C
Section 2-2
PT) in the follow-
Allocation
OK
Not for
Host Link
OK
Not for
Host Link
No
No
No
No
Not for
Host Link
No
OK
Not for
Host Link
Not for
Host Link
53